Warming showcase



FIG. 1 is a right side perspective view of a warming showcase according to the design;

FIG. 2 is a front view of the warming showcase of FIG. 1.

FIG. 3 is a right side view of the warming showcase of FIG. 1.

FIG. 4 is a top view of the warming showcase of FIG. 1.

FIG. 5 is a rear view of the warming showcase of FIG. 1; and,

FIG. 6 is a bottom view of the warming showcase of FIG. 1. 

The ornamental design for a warming showcase, as shown and described. 